Question

a) G = 2(x2 – 3x + 1) - 5(x2 + 6x + 8)

b) H = 5x2 - 4x + 2-3(x2 + 2x + 1) =

c) I = 6x2 - 4x + 1 - 2(3x2 – 2x) =

d) J = 8x2 - 8x2 + 12x - 2(6x + 1) =​

Answer 1

Resposta:

a)-38-42x

b)12-16x-3

c)-8x+1

d)-2

Explicação passo-a-passo:

a) 2(x2-3x+1)-5(x2+6x+8)

    4x-6x+2-10x-30x-40

    -2x-38-40x

    -38-42x

b)5x2-4x+2-3(x2+2x+1)

  10-4x+2-6x-6x-3

  12-10x-6x-3

  12-16x-3

c)6x2 - 4x + 1 - 2(3x2 – 2x)

  12-4x+1-2(6-2x)

  12-4x+1-12-4x

  -8x+1

d)8x2 - 8x2 + 12x - 2(6x + 1)

  16-16+12x-12x-2

  -2